Abstract: A preparation of a high-conversion compound rumen bypass polyunsaturated fatty acid powder and the use thereof. The preparation comprises: adsorbing a polyunsaturated fatty acid oil by means of an adsorbent under vacuum conditions, and compounding a water-soluble antioxidant and an enzyme for promoting digestion and absorption to form a mixed powder; uniformly mixing and granulating the mixed powder by using a colloid or flour, and carrying out one-layer fixed coating by using a polysaccharide; and performing rumen bypass coating of the one-layer coating granule by using a fat powder or of a monoglyceride and a diglyceride by using a coating machine.

Abstract: The invention discloses the use of the Schizochytrium limacinum and its preparation in improving the quality and yield of animal product. The deposit number of Schizochytrium limacinum in the present invention is CGMCC No. 13746 in the China General Microbiological Culture Collection Center. The Schizochytrium limacinum powder produced by the Schizochytrium limacinum may increase the DHA content in an animal product, reduce the cholesterol content in an animal product, and also improve the egg production performance of poultry. This animal product with high DHA content from natural sources is organic, safe, stable, and easy to be absorbed. It may be used as a safer and effective way for people to ingest natural DHA, and it may also cater to and meet consumer needs. Thus, Schizochytrium limacinum and Schizochytrium limacinum powder of the present application have a wide range of application in the field of general food and livestock breeding.

Abstract: The invention discloses the use of the Schizochytrium limacinum and its preparation in improving the quality and yield of animal product. The deposit number of Schizochytrium limacinum in the present invention is CGMCC No. 13746 in the China General Microbiological Culture Collection Center. The Schizochytrium limacinum powder produced by the Schizochytrium limacinum may increase the DHA content in an animal product, reduce the cholesterol content in an animal product, and also improve the egg production performance of poultry. This animal product with high DHA content from natural sources is organic, safe, stable, and easy to be absorbed. It may be used as a safer and effective way for people to ingest natural DHA, and it may also cater to and meet consumer needs. Thus, Schizochytrium limacinum and Schizochytrium limacinum powder of the present application have a wide range of application in the field of general food and livestock breeding.

Abstract: The present invention discloses a strain of bacteria producing DHA and/or EPA, six gene fragments in the bacterial genome, and uses thereof. The strain is Schizoochytrium limacinum HS01, which has the accession number of CGMCC No. 13746 at China General Microbiological Culture Collection Center. The six gene fragments are composed of gene fragment 1 to gene fragment 6, and the nucleotide sequences are sequentially as shown in SEQ ID NO: 3 to SEQ ID NO: 8 in the Sequence Listing. The experiments prove that fermentation broth containing DHA and EPA can be obtained by fermenting Schizoochytrium limacinum HS01; the recombinant strain is obtained by introducing gene fragment 1 to gene fragment 6 into Schizoochytrium limacinum MYA-1381; the ability the recombinant strain for producing DHA and EPA is greatly improved.

Abstract: The present invention discloses a strain of bacteria producing DHA and/or EPA, six gene fragments in the bacterial genome, and uses thereof. The strain is Schizoochytrium limacinum HS01, which has the accession number of CGMCC No. 13746 at China General Microbiological Culture Collection Center. The six gene fragments are composed of gene fragment 1 to gene fragment 6, and the nucleotide sequences are sequentially as shown in SEQ ID NO: 3 to SEQ ID NO: 8 in the Sequence Listing. The experiments prove that fermentation broth containing DHA and EPA can be obtained by fermenting Schizoochytrium limacinum HS01; the recombinant strain is obtained by introducing gene fragment 1 to gene fragment 6 into Schizoochytrium limacinum MYA-1381; the ability the recombinant strain for producing DHA and EPA is greatly improved.